Unity Excel 文件读取和写入

在网上看到不少Unity 的解析Excel 的文章，其中最经典的一篇莫过于雨凇Momo的Unity3D研究院之MAC&Windows跨平台解析Excel（六十五）

可是在使用的过程当中仍是碰到了很多的问题，在这里总结一下，但愿能对看到此处的朋友一个帮助。

Excel的读取，

须要加入库文件 Excel.dll 和ICSharpCode.SharpZipLib库文件，官方连接 http://exceldatareader.codeplex.com/

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using Excel;
using System.Data;

Excel文件读取和转换List格式

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public class ExcelAccess

{

public static string ExcelName = "Book.xlsx";

public static string[] SheetNames = { "sheet1", "sheet2", "sheet3", "sheet4" };

public static List

SelectMenuTable(int tableId)


{

DataRowCollection collect = ExcelAccess.ReadExcel(SheetNames[tableId - 1]);

List

menuArray = new List();


for (int i = 1; i < collect.Count; i++)

{

if (collect[i][1].ToString() == "") continue;

Menu menu = new Menu();

menu.m_Id = collect[i][0].ToString();

menu.m_level = collect[i][1].ToString();

menu.m_parentId = collect[i][2].ToString();

menu.m_name = collect[i][3].ToString();

menuArray.Add(menu);

}

return menuArray;

}

///



/// 读取 Excel 须要添加 Excel; System.Data;

///

///

///

static DataRowCollection ReadExcel(string sheet)

{

FileStream stream = File.Open(FilePath(ExcelName), FileMode.Open, FileAccess.Read, FileShare.Read);

IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);

DataSet result = excelReader.AsDataSet();

//int columns = result.Tables[0].Columns.Count;

//int rows = result.Tables[0].Rows.Count;

return result.Tables[sheet].Rows;

}

}

 

这里逻辑很简单，若是有不懂得能够上Excel的文档里去看，可是这个Excel的库有一个限制，就是只能读不能写，而且只能在编辑器下用，若是打包出来加载时会报空指针异常，缘由就不清楚了，因此建议你们，让策划把Excel写好后，在编辑器下读取后用Unity 的ScriptableObject 存起来，而后保存成Asset文件，能够在运行时更方便的读取。

 

下面给出个人实现方式，你们能够根据本身实体类来写这个StrignHolder；

 

StringHolder类

 

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using UnityEngine;

using System.Collections.Generic;

public class BookElementHolder : ScriptableObject

{

public List

menus1;


public List

menus2;


public List

menus3;


public List goods;

}

 

制做Asset编辑器（能够把Asset达成AssetBundle的包，而后用WWW读取）

 

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[MenuItem("Assetbundles/Create Assetbundles")]

public static void ExcuteBuild()

{

BookElementHolder holder = ScriptableObject.CreateInstance();

holder.menus1 = ExcelAccess.SelectMenuTable(1);

holder.menus2 = ExcelAccess.SelectMenuTable(2);

holder.menus3 = ExcelAccess.SelectMenuTable(3);

holder.goods = ExcelAccess.SelectGoodTable();

AssetDatabase.CreateAsset(holder, HolderPath);

AssetImporter import = AssetImporter.GetAtPath(HolderPath);

import.assetBundleName = "booknames";

BuildPipeline.BuildAssetBundles("Assets/Abs");

Debug.Log("BuildAsset Success!");

}

Asset读取方式

 

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public string assetName = "bonenames";
public void readAsset()
{
Object asset = Resources.Load(assetName);
BookElementHolder ceh = (BookElementHolder)asset;
foreach (Good gd in ceh.goods)
{
Debug.Log(gd.m_name);
}
}

好了，Excel的读取就到这里，接下来说一下Excel 的写入，怎么生成一个Excel文件，并把数组或字典中的数据写入Excel中呢？

 

此时须要一个Excel.dll的姐妹，EPPlus.dll 官方连接 https://epplus.codeplex.com/releases/view/118053

 

使用方法在官方的文档中都有，这里只贴出个人实现方式。

 

须要添加的命名空间

 

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using OfficeOpenXml;

写入方法

 

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public static void WriteExcel(string outputDir)

{

//string outputDir = EditorUtility.SaveFilePanel("Save Excel", "", "New Resource", "xlsx");

FileInfo newFile = new FileInfo(outputDir);

if (newFile.Exists)

{

newFile.Delete(); // ensures we create a new workbook

newFile = new FileInfo(outputDir);

}

using (ExcelPackage package = new ExcelPackage(newFile))

{

// add a new worksheet to the empty workbook

ExcelWorksheet worksheet = package.Workbook.Worksheets.Add("Sheet1");

//Add the headers

worksheet.Cells[1, 1].Value = "ID";

worksheet.Cells[1, 2].Value = "Product";

worksheet.Cells[1, 3].Value = "Quantity";

worksheet.Cells[1, 4].Value = "Price";

worksheet.Cells[1, 5].Value = "Value";

//Add some items…

worksheet.Cells["A2"].Value = 12001;

worksheet.Cells["B2"].Value = "Nails";

worksheet.Cells["C2"].Value = 37;

worksheet.Cells["D2"].Value = 3.99;

worksheet.Cells["A3"].Value = 12002;

worksheet.Cells["B3"].Value = "Hammer";

worksheet.Cells["C3"].Value = 5;

worksheet.Cells["D3"].Value = 12.10;

worksheet.Cells["A4"].Value = 12003;

worksheet.Cells["B4"].Value = "Saw";

worksheet.Cells["C4"].Value = 12;

worksheet.Cells["D4"].Value = 15.37;

//save our new workbook and we are done!

package.Save();

}

}

把上面的数据换成你本身的数组和字典遍历就OK 了。好了，今天的课程就到这里，欢迎大神指教啊

 

因为你们遇到问题较多，特附上工程地址：

Git地址：https://git.oschina.net/passionyu/ExcelReadWrite.git